Editorial: July 4 mass shooting drives home how much America has left to do on gun reform

Every mass shooting in America is a tragedy, but the one that killed seven people near Chicago Monday was especially jolting, as it combined two singularly American phenomena: the nation’s annual celebration of its independence and the chronic scourge of gun violence at a level unheard of in the rest of the advanced world. Why was a 21-year-old man who had posted violent imagery glamorizing mass shootings able to legally buy a weapon of war and at least 70 rounds of ammunition, and take it to a rooftop over a July 4 parade? That ludicrous scenario was as uniquely American as the parade itself.